[PATCH] Move print_version into printversion.{h|c}

[Ulf Hermann]

> But like said before argp is needed for the tools and the libdw
> interface. If your glibc replacement doesn't provide argp the build
> should pick up libargp and get the definitions and implementation from
> there.

libdw only needs it for argument parsing, which we can disable if argp isn't available. Not being able to build the tools in that case isn't the end of the world either. We're can still get a perfectly functional libdw and libelf. I would really like to cut down on dependencies rather than add extra third party code.

Ulf